Machine for inwrapping pieces of fatty materials.



0. HESSER.

MACHINE FOR ENWRAPPING PIECES OF PATTY MATERIALS.

APPLICATION FILED JULYZO, 1914- 1 1 1 7, 1 88, Patented Nov. 17, 1914.

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Q azzozkmev O. HESSER MACHINE FOR ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY 20, 1914- 1,117,188. Patented Nov. 17, 1914.

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MACHINE FOR ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY 20, 1914.

1,117,188. Patented Nov. 1 7, 1914.

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(bum/10L i- .OZZoHeooev 0. HESSER.

MACHINE FOR ENWRAPPING' PIECES OF FATTY MATERIALS. APPLICATION FILEDJULY 20, 1914.

1,1 1 *7, 1 88. Patented Nov. 17, 1914.

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MACHINE FOR. ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY-20, 1914. 1,1 17, 1 Patented Nov. 17, 1914.

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MACHINE FOR ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY 20, 1914.

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MACHINE FOR ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY 20, 1914.

1,1 17,188. I Patented Nov. 17, 1914.

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O. HESSER.

MACHINE FOR ENWRAPPING PIECES OF PATTY MATERIALS.

APPLICATION FILED JULY 20, 1914- 1,1 1'7, 1 88. Patented Nov. 17, 1914.

10 SHEETSSHEET 8.

6061M "H @QJWL ZZoHes@ez O. HESSER. MACHINE FOR ENWRAPPING PIECES OFFATTY MATERIALSC' APPLICATION FILED JULY 20, 1914.

1,1 17,188. Patented N0v.17,1914.

10 SHEETS-SHEET 9.

Wivzasises': 7771/7672, 5012' O. HESSER.

MACHINE FOR ENWRAPPING PIECES OF FATTY MATERIALS.

APPLICATION FILED JULY 20, 1914.

1,1 17,188,, Patenfied N0v.17,1914.

l0 SHEETS-SHEET 10.

UNI ED STATES" PATENT OFFICE.

OTTO HESSER, OF CANNSTATT, NEAR STUTTGART, GERMANIZ, ASSI GNO R TO THEFIRM 01 FR. HESSER MASCHINENFABRIK AKTIENGESELLSCHAFT, 0F CANNSTATT,NEAR STUTTGART, GERMANY.

MACHINE FOR INWRAPPING PIECES OF FATTY MATERIALS.

Specification of Letters Patent.

Application filed July 20, 1914. Serial No. 851,900.

To all whom it may concern:

. -Be it known that I, O'r'ro Hussnn, a subject of the German Emperor,and resident of Cannstatt, near Stuttgart, in the German 'Empire, haveinvented an Improved and Novel Machine for Inwrapping Pieces. of

, Fatty Materials, of which the following is a the checks of which arepreferably mois tened, off a feeding device which is formed by plates,preferably also moistened, and I let said tongs place the piece of fatupon the piece of paper into which said former piece is to be inwrapped.The paper is then turned into U-shape by bending upward those parts thatlie transversely to the direction of feed and holding or pressing saidparts against the respective sides of the piece of fat which is held inplace during that time by means of a stamp, preferably also moistened;then, while those sides of the piece of fat that are situatedtransversely,

t0 the direction of feed are being appropriately re-shaped andsupported, the upwardly projecting lateral parts of the paper and thoseupper parts of it which lie in the direction of feed in front of andbehind the piece of fat, are folded, whereafter, while those sides ofthe piece of fat situated in front of and behind the said piece in thefeed direction as well as those lying transversely to the feed directionare being appropriately re-shaped and supported, the

lateral paper lugs located transversely to the direction of feed at thefront and the rear end of the piece of fat may be folded inwardly.whereas the under ears that have remained in the feed direction at thefront and at the rear of the piece of fat are bent or fold. ed byshoving the piece of fat into the feed channel, as is all fullydescribed hereinafter.

I In order to make my invention more clear,

I refer to the accompanying drawings which illustrate a machineaccording to my invention, as an example.

Figures 1 and 1 are the plan of the complete machine which is, as anexample, designed to inwrap pieces of fat in the form of cubes; Figs. 2and 2 are the front views of the feed device seen from line A-B of Fig.1 and drawn in a larger scale; Figs. 3 3", and 3 show details of Fig. 2in plan; Fig. 4 is a representation of the cube conveying device seenfrom line CD of Fig. 1; Fig.

Patented Nov. 17, 1914. I

5 shows the parts represented in Fig 4 from the left side; Fig. 6 is arepresentation of the arrangement and combination of parts provided uponthe stationII and seen from the line EF of Fig. 1; Fig. 7 shows a detailof Fig. 6 seen from line G-H of Fig. 6 in the direction to below; Fig. 8is a representation of the parts provided upon the station III and seenfrom the line J K of Fig. 1; Fig. 9 shows parts represented in Fig. 8from the right hand side; Fig. 10 is a representation of the partsprovided upon the station IV and seen from line L-M of Fig. 1; Fig. 11is a plan of the parts shown in Fig. 10; Fig. 12 is a representation ofa device provided upon the station IV and seen from line NP of Fig. 1;Fig.1? shows the parts of Fig. 12, seen from the right hand side; Fig.141 is a representation of the parts of the station V seen from the lineQ,R of Fig. 1; Fig. 14" is a cross section through the arrangement ofthe eccentrics in line ST of Fig. 14; and Figs. 15-19 arerepresentations of the successive folding stages occurring during theinwrapping of a cube, the parts concerned being shown in each stage inplan, from a side, and from right hand.

The various movable parts of the machine are driven by means of thepulley 300 keyed to the shaft 301 supported in bearings 303, 304,aflixed to the plate 302. A bevel wheel 305 secured to said shaft is ingear with a bevel wheel 307 keyed to a shaft 306 supported in bearings308, 309. A bevel wheel 310 afiixed to this shaft is in gear with abevel wheel 3.11 of a shaft 312 supported in bearings 314:, 315 alsoafiixed to the plate 302. If desired, all said shafts may be rotated bya hand wheel 316.

The inwrapping paper is held upon a 318 of the machine frame 319. Theunwound paper is led to a pair of rollers 22, 22, of which the first issupported in brackets 320 and the other is uided in appropriate bearings320 and is pressed against the other roller by a spring 320. The roller22 is driven by a pulley 23 which is furnished with a clutch, and by acrossed belt 24 connecting said pulley with another pulley 25 keyed tothe shaft 301, the paper band being consequently continuously fed by thesaid rollers.

In order to intermittently feed the paper band in accordance with thewrapping blanks to be out OK, rollers 28, 29 are provided, of which thefirst is rotatably supported in the bracket 320 and is turned by meansof the pulley 26, the crossed belt 322, the pulley 27, and the shaft301. The upper roller is supported in levers 31 supported in their turn,at 32, in brackets 320 and being connected'at their free ends 323 with aforkshaped lever 33 moved up and down by means of an eccentric rod 33and an cecentric also ailixed to the shaft 301. The respective shafts ofthe two rollers in question are provided with cog-wheels 30, 30' whichcome in gear with each other when the fork 33 is in its lower position,whereas they are out of engagement in the other position of said fork.Simultaneously with the cog-wheels 30, 30' also the rollers 28, 29 comeout of contact. The eccentric for actuating the fork 33 is so devisedthat the contact of the rollers 28 and 29 and thus the movement of thepaper lasts so long that as 7 much paper is fed as is necessary forinwrapping another cube. Then the fork 33 is raised and thereby thecog-wheels 30, 30 and the rollers 28, 29 come out of gear or contact. 34is an angular abutment piece for the paper, serving to make it occupythe proper position. Arail 325 (Fig.4),now moved down upon the paper,presses this latter elastically against the upper surface 10 of thebracket 326 affixed to the plate 302. Said rail is secured to bars 20which may be moved up and down in an arm 19 and is normally as farpressed down by springs 20 as to contact with the guide sleeves 19' ofthe arm 19. This arm is aflixed to an arm 15 which is vertically movableat 327, 328 in the bracket 326 and is operated by a lever 16 coupledwith said arm by a slide 330 and a link 331. The lever 16 is supportedbya shaft 329 and is actuated from an eccentric of the shaft 312 bymeans of the eccentric rod 17. At the same time, when the rod 15 getsdown, also the cutting-0d knife 8 is lowered, but in sucha manner thatfirst the rail 325 presses the paper elastically against the abutment10, after which the knife in question passes'along the counter knife 9aflixed to the bracket 326. The knife 8 is attached to a hinge 12attached in its turn to a bolt 12 held in a fork 14 se- 15 is upwardlymoved so that the knife 8 comes out of contact with the knife 9 and therail 325 leaves the paper. There is now on the station Ia readily cutpiece of paper suited to receive a piece of the material to beinwrapped. These pieces, or cubes respectively, are conveyed to theinwrapping place by aid of plates 331 (Fig. 4) consisting of wood,china, glass, or the like, and each plate is provided at its rear endwith a longitudinal rib 332 serving to take the respective cube with it;there are, further, raised parts 333 and groove-like cavities 334; andother plates 336 provided each with a lug 335 serve to connect thefirst-mentioned plates with a roll chain 337 as shown in Figs. 1 and 4.To support the plates laterally, angular longitudinals 338 are providedwhich are attached to brackets 339, 340, 341. The first two of thesebrackets are aflixed to the machine table 302; the third bracket isconnected by bars 342 with the frame 343 of the machine. The chain 337rolls upon the rail 337, passes around the chain wheels 5 and 34.4 andis intermittently moved for 'such ways as necessary for the purpose inview. The device for thus operating the chain consists of a ratchetwheel 2 supported in a bracket 345 aflixed to the machine table, and ofa pawl 1 carried by toggle-lever 6 loosely fulcrumed upon the shaft ofsaid wheel; this wheel is intermittently rotated by said pawl accordingto the oscillations of the toggle-lever which is oscillated by aneccentric afiixed to the shaft 312 and by an eccentric rod 7 operated bysaid eccentric and operating in its turn the said lever. Thestep-by-step motion of the ratchet wheel 2 is transmitted to the shaft346 of the chain wheel 5 by means of the cog wheel 4. The chain 337 isfurther led over a guide wheel 346 which may be adjusted in height atthe bracket 340, and said guide wheel is arranged above a water vessel347 in such a manner that the plates 331 are made to pass through thewater within said vessel in order to be moistened, as already mentionedin the preamble.

When the cube has been transported, in the manner described, to thestation, 1, it is conveyed by a tong-like device to the station 11 whereit is deposited upon the piece of paper previously cut off. The tonemployed for this purpose (Figs. 1, 2, 3% consists of the wooden cheeks71, 71' which are affixed to two separated rails 72, 72. A spring 73draws these rails one against the other. They are guided in uide ways74, 74 provided in a slide 75. They are further movably connected byhinges 81, 81 with a slide 82 which may be moved to and fro upon a rail84 which also in its turn may be moved along upon a rail 76 attached toa slide 89 adapted to be vertically moved at a rail 90 affixed to abracket 91. The to-andfro motion of the slide 75 is effected by thejoint 77, the lever 78, which may be turned upon the shaft 79 supportedin the bracket 91, further by the eccentric rod 80 and the appertainingeccentric keyed to the shaft 306. To move the rail 84 to and fro, ahinge 85 is provided, further a lever 86 supported upon the shaft 79,and an eccentric rod 87 which is also actuated from an eccentric of theshaft 306. The vertical movement of the slide 89 is effected by thehinge 92, the bell-crank lever 93 secured to the shaft 79, and theeccentric rod 94 which is operated from an eccentric keyed to the shaft306.

The manner of operation is as follows: In the same moment in which acube is transferred from the station I to the station II, e. upon thepiece of paper there present by means of the tongs 71 71, the parts inquestion are in the position shown in Figs. 2 and 3", that is to say,the rails 72, 72 are being drawn one against the other so that thecheeks of the tongs are still in contact with the cube. Now the rail 84is moved to the left by the mechanism described, and the front abutment83 of the rail 84 pushes upon the slide 82 and presses it to the leftuntil the arms 81 and 81' contact with the abutments 350, 351, afterwhich the rails 72 and 72 are moved away one from the other by a spring73 and by the toggle-lever action. The rail 84 now comes to astandstill. By the outward movement of the rails 72, the cheeks 71, 71have let loose the cube. Now the slide 75 with its open cheeks 71, 71 ismoved to the left by the mechanism described until said cheeks passalong at the sponges 353, 353 (Figs. 2 and 3) which dip into a vessel354 containing water, the cheeks being now moistened by the wet sponges.The slide 75 is now moved to the right until the cheeks 71, 71 arrive atthe station I, where the further forward movement of the slide isinterrupted. The rail 84 is then, by the mechanism described, shoved tothe right for such a Way that its abutment 88 pushes from the leftagainst the slide 82 moving this to the right, for such a way, that nowthe rails 72, 72 may again be drawn against one another by the spring73, the rail 84 coming finally to a standstill. Byreason of the inwardmovement of the rails 72, 72, also the cheeks 71, 71 therewith connectedare moved inward and grasp the cube present at the station I at twosides. After this, the rail 76 with the slide 75 and thus also thecheeks 71, 71 with the cube are raised by means of the slide 89 and theappertaining mechanism, and the slide 75 is moved also by itsappertaining mechanism, from the position shown in Fig.'

latter, until the cube touches the piece of inwrapping paper intendedfor it, after which, by the left hand movement of the rail 84, thecheeks 71, 71 are again opened by means of the abutment 83 and the cube500 is deposited upon the aper 501 (Fi 1 5).

At the station II (Figs. 1, 6, 7) the piece of inwrapping paper is bentor folded around the cube so as to be turned into U-- shape and the legsof the U are pressed against the cube, as shown in Fig. 6. This" iseffected by two folding plates 46, 46 arranged lengthwise with respectto the direction of feed; said plates are attached-to upper eyes of arms36, 36 and may be latv erally adjusted by means of bolts 355, 355 andscrews 356, 356. The arms 36,36 are fulcrumcd upon bolts 41, 41 of aslide 35 which may be vertically moved upon a rail 37, affixed to thebracket 357, by means of a lever 38 that is connected with the slide '35by means of a sliding block 358 and a link 360 and is fulcrumedupon anauxiliary shaft 329 and may be vertically moved from an eccentric of theshaft 312 by an eccentric rod 40. To the arms '36, 36 are attachedswitches 42, 42 with which said arms are kept coupled by means of aspring 43 and by the mediation of guide rolls 44, 44. These rolls aresupported by a holder 45 and may be laterally adjusted by means of bolts361, 361; said holder is aflixed to the upper end of the rail 37. Abovethe station II is arranged a wooden stamp 47 which may be adjusted inheight by a bolt 362 and is attached to a lever 48; above said stamp isarranged a sponge 364 that is kept wet and is held in place by metalbands 365 or the like; the stamp 47 is thus constantly moistened by thatsponge. The lever 48 is supported at 49 in the bracket 368 and isoscillated from an eccentric of the shaft 312 by the rod 50. Theoperation of this arrangement is the following: Nhen the cube has beendeposited upon the piece of paper into which it is to be inwrapped (Fig.15), the position of the lateral plates 46, 46 is that indicated in Fig.6 by the dotted lines below the paper. In this position the distance ofthe plates 46, 46 from each other is considerably larger than thebreadth of the cube. The slide 35 which, of course, has also been inthat lower position is now raised by the means provided for that purposeand thus also the plates 46, 46 are raised and are made to graduallyapproach the sides of the cube by the cooperation of the switches 42, 42and the surface (Fig. 17).

guide rolls 44, 44, the distance between said plates being thus reducedto the breadth of the cube when the said plates have arrived in theirupper end position. The folding operation proceeds thus in this way thatthe side parts of the paper are bent by and by around and against thecube until a U is formed, and at or near to their end position theplates in question are pressed against the respective sides of the cube.The side parts of the paper are thus made to adhere to the fattymaterial forming the cube, and this latter is at the same time re-shapedby said plates. Before the upward movement of the plates 46, 46, thestamp 47 has been moved down upon the cube in question by the meansprovided for that purpose, the

cube being thus held fast during the folding and pressing of the pieceof paper, as just described.

After in station 11 the paper has been placed around the cube in themanner described, the plates 46 and 46 are again lowered and the stamp47 is raised, so that z; the cube may now be conveyed to the station111. 'lransporting the cube to the stations Ill, 1V, v is eii'ected byU-shaped grippers 190' (Figs. 1 and 2) aflixed to a common rail 60 whichmay be moved to and fro in slide-like guides 363, by means of brackets62, a hinge 61, and the lever 64 that is supported by the pivot 65carried by the bracket 366 and is oscillated by an eccentric rod 66 froman eccentric afiixed to the shaft 306. The slides 363, 366 are securedto slides 363, 370 which are vertically moved through sleeves 371, 372secured to the machine table and which are connected at their lower endswith a rail 373 which in its turn is connected with a rod 375 verticallyguided in the appropriately recessed sleeve 374. Moving the rail 373 andthus also the bars 363 and 370 is effected by a lever 68 (Fig. 1)carried by the shaft 329 and being oscillated by means of an eccentricrod 376 from an eccentric of the shaft 312. The double mechanism justdescribed is thus capable of moving the rail 60 with the grippers 190vertically as well as horizontally. The grippers 190 are moved in alongitudinal slot 377 (Fig. 6) between two plates 378, 379 supportingthe cubes and which are supported in their turn by the standards 380,381 carried by the table 302. The cubes are thus moved forward in thisway that the grippers 190' take hold of the cubes from below, shove themto the next station, get down, and move back for the same length of way,when they again rise to grasp 'another cube from below.

At the station III (Figs. 1, 8, 9) the parts a, a of the U-shaped pieceof paper which extend above the upper surface of the cube are bentinward down upon this This is effected by folding plates 100, 100 whichare secured to rockers 101, 101 carried by bolts 102, 102 of brackets104, 104; said rockers are kept coupled with switches 108, 108 by meansof rollers 103, 103; said switches are attached to brackets 107, 107.The brackets 104, 104 are aflixed to brackets 105, 105 which may bedisplaced in guide Ways 106, 106 of the brackets 107, 107. Moving theslides 104, 104, as well as the folding plates 100, 100 to and fro isefiected by levers 109, 109 carried upon bolts 383, 329 supported in thebrackets 107, 107; said levers are provided with rotary glide blocks384, 384 cooperating with links 385, 385 situated in the slides 104, 104and actuated by eccentric rods 110, 110 from eccentrics afiixed to theshafts 301, 312. 'There are further provided upon the statioh IIIlateral plates 111, 111 extending in the direction of feed and attachedto bars 112, 112 guided at 386, 386' in the brackets 107, 107. Pins 117,117 prevent a rotary movement of said levers. To reciprocate the bar112, a toggle-lever 113 is provided which is carried by the bolt 383 ofthe bracket 107 and takes with its circular head 388 between abutments389, 390 of a sleeve 391 carried by the bar 112 and which is held by aspring 114 and an adjusting screw 392 in contact with a bearing surface393 of a lever 113 which is fulcrumed upon a shaft 329 and is rocked bythe mediation of its extension 115 and an eccentric rod 116 from aneccentric keyed to the shaft 312. For the rest, the lever 113, like thelever 113, coiiperates with the bar 112, the guide roll of the bar 11.6being held in contact with said eccentric by means of the spring 114.The plates 111, 111 are thus simultaneously actuated by the rod 116.There are, furthermore, arranged on the station III the head folders118, 118 which are ailixed to separate rails 119, 119 by means of arms394, 94 in such a manner that they may be laterally adjusted; said armsmay be displaced'in a slide 123. Bolts 395, 395 extend throughlongitudinal slots provided in the rear surface of the slide 123; saidbolts are carried by the rails 119, 119 and they carry in their turnrolls 121, 121 by means of which said rails are held coupled withswitches 122, 122 that may rotate upon bolts 127, 127 of a slide 124 towhich is attached also the slidelike guide 123. The switches 122, 122are held in contact, by a spring 120, and above the pivots 127, 127,with rolls 128, 128 located upon bolts 396, 396 carried in brackets 129,129' which may be laterally adjusted in the bracket 126. The slide 124is guided at the rail 125 which is afiixed to the bracket 126 andprovided with an oil guard 125, and it is vertically moved by a lever130 having a glide block 396 cooperatfrom the end surface of-the cube.

ing with a link 397 of the slide 124; said lever is supported by a bolt131 of the bracket 126 and is oscillated by an eccentric rod 132 from aneccentric afiixed to the shaft 301. v

The manner of operation of this device is as follows: \Vhen the cubewith the U- shaped piece of paper (Fig. 16) arrives at the station III,the side plates 111, 111 which up to then were in a receded position arepressed by the springs 114, 114 against the; respective sides of thecube (Fig. 8) by reason of the appropriate configuration of theeccentric operating the rod 116. Now the folding slides 100, 100' aremoved inward by the mechanism before described, and at the same'timethey are rotated by the switches 108, 108 and the guide rolls 103, 103.Owing thereto, the upwardly projecting side parts a, a of the U-shapedpieces of paper are bent down upon the cube (Fig. 17) so that the papernow appears in the form-of a hose of rectangular section. The sideplates 111, 111 are now moved back by the described mechanism providedfor this purpose and the head folders 1.18, 118' are lowered which iseffected by the slide 124 being moved downward at the rail 125 by meansof the arts before described. Those surfaces of the switches 122, 122which are in contact with the guide rolls 128, 128 are so dimensionedthat the inner surfaces of the head folders 118, 118 are at first in acertain distance Only of the upon the way ab (Fig. 9)

' switches 122, 122, the head folders 118, 118' are elastically pressedagainst the head surface of the cube. In the lower position of thefolders 118, 118', the side plates 111, 111 are pressed inward a secondtime by means of the springs 114, 114, as already described. By thismeans, a sharp break is produced in the closing folds pressed in betweenthe plates 111, 111, and the side surfaces of the head folders 118,118', and further the cube which is pressed in, at its head ends,between the head surfaces of the folders 118, 118 and, at its lateralsides, between the plates 111, 111 is reshaped. After this, the folders118, 118 are again raised to the position shown in Fig. 8 and the sideplates 111, 111 are laterally drawn off the cube. The shape of the pieceof inwrapping paper is now that shown in Fig. 18. The so far inwrappedcube is now conveyed to the station IV. Side plates 146, 146' (Figs. 1and 2) provided between the stations III and V guide the cube on thispart of its path and prevent unfolding of the folded lateral paperparts; said plates may be laterally adjusted corresponding to thebreadth of the cube. Another plate, 398, attached to one of said sideplates prevents the upper part of the folded paper from unfolding whilethe cube is moved from the station III to the station IV; said plate 398may be adjusted, if desired, in such a manner that it presses the paperpart in question a second time against the upper surface of the cube.

On the station IV (Figs. 1, 10-13), the lateral ears 0 (Fig. 18) arefolded inward (Fig. 19) which is effected by two pairs of folding bodies156, 156. It will be sufficient to describe one of these pairs, forinstance the lefthand one. The folding bodies 156, 156 which aresituated on the two sides of the feed device may be rotated, as well aslaterally displaced, upon bolts 157, 157

which are fastened ineyes 158, 158 of slides.

159, 159. These slides are longitudinally guided in rails 160, 160affixed to standards 161, 161. The reciprocating movement of the slides159, 159 is effected by the mediation of forked hinges 162, 162' bymeans of toggle-levers 163, 163 which are fulcrumed to bolts 399, 399secured to brackets 161, 161, and are operated by eccentric rods 164,164 from eccentrics of the shafts 312 and 301. The rocking folders 156,156 are, at their rear ends, provided with rolls 165, 165 held by meansof springs 166, 166 in engagement with switches 167, 167 which aresecured to the sides of the rails 160, 160; said springs are secured atthe one end to the slides 159, 159 and at the other end to downwardlyextending lugs 168, 168 of the eyes 158, 158. The extensions 168, 168

' form, at their inner sides, also switches and transversely to thedirection of feed (Figs.

1, 12, 13). For this purpose, the plates 140, 140 are affixed to arms141, 141 which may be turned, at 142 and 142, on a cross-piece 147. Thearms 141, 141 are so shaped at their inner sides as to form switches401, 401 which are held in engagement, by a spring 143, with guide rolls144, 144 carried by bolts 402, 402 aflixed to a cross piece 145 securedin its turn to the lateral guide rail 146 by means of the connectingpiece 403. The cross piece 147 is connected by the arm 404 with an arm149 (Figs. 1 and 12) secured to a bar 150. A. link-like piece 405 isaffixed to the bar 150 in the manner shown in Figs. 1 and 14, and theslot of-said link contains a glide block 406 movably connected with thelever 153 which is carried by the bolt 154 of the bracket 152 and isrocked by an eccentric rod 155 from an eccentric of the shaft 301.

The manner of operation of the parts forming the station IV is asfollowsz After,

and

the cube with the paper folded according to Fig. 18 has arrived on thestation 1V, the sheet metal plates 140, 140 are moved down from theirupper position shown in Fig. 12 in dotted lines. As in that upperposition of said plates the parts 505, 505 of the arms 141, 141 are inengagement with the rolls 144, 144, the plates 140, 140 are in a greaterdistance one from the other than corresponds to the length of the cube.Owing to the fact that, on the arms being lowered, their surfaces 401,401 and 505, 506 contact successively with the rolls 144, 144, also saidplates are moved inward so that they,

,-. when in their lower position (Fig. 12), are

laid tightly against the paper covering the head sides of the cube andpress the paper already for a certain length of way before from aboveagainst said sides of the cube. As also the lateral guide rails 146, 146are provided at both sides with elongations 407 extending downward atboth sides of the station 1V (Fig. 2), the cube is inclosed at all itsfour sides, its proper shape being maintained in this manner. As seenfrom Fig. 12, in the lower position of the plates 140, 140, the lowersurfaces 408, 408' of the arms 141, 141 are laid from above upon therims of the paper so that also in this way unfolding of the same isprevented. While the sheet metal plates 140, 140 remain in their lowerposition, the side folders 156 are being moved inward by the mechanismbefore described. As shown in Fig. 11, the folders 156 are, in theirextreme end position, more distant from one another than corresponds tothe breadth of the cube. Owing to the fact that the switches 168 of thefolding bodies being advanced pass away gradually over the rolls 170,the folding bodies in question are made to approach each other whenbeing moved inward so that the bent or folded paper is sharply pressedagainst the plates 140, 140 whereby a sharp break is produced. At thesame time, the folding bodies are lowered by means of the rolls 165coming in gear with the switches 167 so that also the under lugs d-(Fig.19) are tightly pressed against thev rails 37 8, 37 9 whereby also herea sharp break is produced. After the folding bodies 156 have been drawnback, the folding bodies 156 are made to advance by the mechanismprovided for this purpose and they are moved by the coiiperation of theswitches 168 with the guide rolls 170, as well as by the coiiperation ofthe guide rolls 165 with the switches 1675, in such a manner, that,during the forward movement thus effected, they move inward, as well asdownward, viz. from the position shown in Figs. 10 and 11, so that thefolded lugs are pressed laterally against the sheet metal plates 140,140', as well as downward against the rails 378, 379, whereby againsharp breaks are produced. After the folding bodies 156 have been drawnback, the plates 140, 140 are again raised by the means thereforprovided, and the cube the inwrapping paper of which has now theshape-shown in Fig. 19, may then be conveyed to the station V. Apreliminary folding of the ears of (Fig. 19) is effected during thisadvance movement by the U-shaped gripper 190' contacting with the frontand rear edges of the cube, whereby the ears are bent upward by meansofthe lateral fingers of that gripper. The front one of the just foldedears d 'c0ntacts on the station V with a rail 191 which is provided witha recess 192 (Figs. 2. and 3) allowing of the entrance of the frontfinger of the said gripper.

On the station V the cube is pushed into the conveying gutter, thebottom 410 of which is screwed at its frontend to a plate 411 affixed tothe standard 152. .llhe lateral guide plates 195 of the conveying gutterare inclined at their front end, in the manner shown at 412 in Fig. 14,and above the entrance opening a horizontal rail 199 is affixed to aholder 414 secured to the machine table'302. The pushing out is effectedby a stamp 194 attached to a bar 196 guided in the bracket 415. T hisbar is provided at its rear end with a link 416, in the slot 417 ofwhich a glide block 418 revolubly connected with a lever 197 may bedisplaced. This lever is fulcrumed upon a bolt 419 secured to thestandard 415 and is rocked by an eccentric rod 198 which is guided by afork 421 from an eccentric 420 actuating said rod by the mediation of aroll 422. The manner of operation of this device is as follows: As

of the conveying gutter. Owing to the fact that the ears in questionwhich have already been preliminarily folded pass along at the obliquelyupward extending guide edges 412 they are finally and ultimately folded;the cube is held in place during this timeby means of a plate 199 whichat the same time plresses the paper from above upon the cube.

uring the further way of the thus finished cube with its envelop, thislatter can no more unfold owing to the guide parts 195 provided for thispurpose. Finally, after the cube has been shoved into the position VI(Fig. 14), the stamp 194'is moved back by the means described to theright into the osition represented in this figure.

Having now described my invention, what I desire'to secure by a patentof the United States is:

1. In a machine for inwrapping pieces of rality of working places andwith means for conveying each piece to and away from each of said placesin proper succession, of means for placing an inwrapping paper blankinto the path of the pieces to be inwrapped, a feed device for thesepieces, means for putting the piece next to be inwrapped from said feeddevice upon the paper blank, means for bending upward those projectingparts of the blank that lie transversely to the feed direction andpressing these partsagainst the respective sides of the piece ofmaterial, means for folding down upon the upper side of said piece theupwardly projecting parts of the blank, means for supporting parts ofthe blank, means for supporting those sides of the piece-of materialthat lie transversely to the feed direction during said folding process,means for folding down the upper projecting parts of the blank which aresituated at the front and rear end of the piece of material in the feeddirection, means for reshaping the sides of the piece of materiallocated transversely to the feed direction after this folding process,means for folding inward the lateral lugs of the blank situated in thefeed direction at the front and rear end of the piece of material, meansfor supporting and re-shaping the front, rear and lateral sides of saidpiece during this folding process, and means for folding inward theremaining under lugs of the blank at the rear and front end of the pieceof material in the feed direction, substantially as described.

2, In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each ofsaid places in propersuccession, of means for placing an inwrapping paper blank into the pathof the pieces to be inwrapped, a feed device forthese pieces; a pair oftongs adapted to put the piece of material next to be inwrapped fromsaid device upon the paper blank; a stamp adapted to hold fast thispiece of material from above; means for moistening the lower surface ofsaid stamp; means for turning the paper blank into U-shape by bendingupward those parts that lie transversely to the direction of feed, andpressing these parts against the respective sides of said piece ofmaterial; and means for further bending the said paper blank against andover the other surfaces of the respective piece of material in thesuccession described and shown.

3. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank into the pathof the pieces to be inwra'pped; a

feed device for these pieces; a pair of tongs adapted to put the pieceof material next to be inwrapped from said device upon the paper blank,and means formoistening the gr pping surfaces of the tong cheeks .aftersald piece of material has been deposited upon said paper blank; a stampadapted to hold fast this piece of material from above; means forturning the paper blank into U- shape by bending upward those parts thathe transversely to the direction of feed, and pressing these partsagainst the respective sides of said piece of material; means forbending over upon the upper surface of the plece of material theupwardly projecting lugs of the paper; and means for finishing theinwrapping stages as described.

4. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paperblank into the pathof the pieces to be inwrapped, a-

feed device for these pieces; two folding means adapted to bend thepaper blank into U-shape, these means being adapted to be moved frombelow to above and to be approached one another during the last part oftheir path, the distance between them being at first larger than thebreadth of the piece of material to be inwrapped and finally equal toit;means for bending over upon the upper surface of the piece of material.the upwardly projecting lugs of the paper blank; means for foldinginward the corner parts of the laterally projecting paper lugs; andmeans for finishing the inwrapping op eration as described.

In a machine for inwrapping pieces of fatty materials, the combination,with a plu-- rality of working places and with means for conveying eachpiece to and away from each of said places in proper succession, ofmeans for placing an inwrapping paper blank into the path of the piecesto be inwrapped, a feed device for these pieces; means for turning thepaper blank into U- shape by bending upward those parts that lietransversely to the direction of feed, and pressing these parts againsttherespective sides of said piece of material; means for bending overupon the upper surface of the piece of material the upwardly projecinglugs of the paper blank; plates adapted to be placed against the sidesof the piece of material before said lugs are bent down and to recedefrom this piece while the paper parts in front and behind the said pieceare being bent, and to return into the former po sition for re-shapingthe respective sides of the piece after this inwrapping operation; andmeans for bending also the remaining paper lugs against the respectivesides of the piece of material, substantiallv as described.

memes 6. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of work ng places and with means forconve- 'in each )iecc to and awa from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be in wrapped; means for turning thecut-off piece of paper into ill-shape by bending upward those parts thatlie transversely to the direction of feed, and pressing these partsagainst the respective sides of said piece of material; means forbending over upon the upper surface of the piece of material theupwardly projecting lugs of the paper; plates adapted to be placedagainst the sides of the cubical piece before said lugs are upwardlybent and to recede from this piece while the paper parts in front andbehind the said piece are being bent, and to return into the formerposition after this inwrap ping operation for reshaping the said piece;head folders adapted to cooperate with said plates in reshaping thecube; and means for bending also the remaining paper lugs against therespective sides of the piece of material, substantially as described.

7. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places andwith means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; means for turning thecut-off piece of paper into U-shape by bending upward those parts thatlie transversely to the direction of feed, and pressing these partsagainst the respective sides of said piece of material; means forbending over upon the upper surface of the piece of material theupwardly projecting lugs of the paper; plates adapted to be placedagainst the sides of the cubical piece before said lugs are upwardlybent and to recedc from this piece while the paper parts in front andbehind the said piece are being bent, and to return into the formerposition after this inwrapping operation for re shaping the said piece;head folders adapted to cooperate with said plates in re-shap-' ing thecube; a lever adapted to move one of said plates and a lever adapted tomove the other plate and yieldingly resting by means of an adjustingscrew on the aforesaid lever; means for bending also the remaining paperlugs against the respective sides of the piece of material,substantially as described.

In a machine for inwrapping pieces of a feed device for the pieces to beinwrapped; means for turning the paper blank into llshape by bendingupward those parts that lie transversely t0 the direction of feed, and.pressing these parts against the respective sides of said piece ofmaterial; means for bending over upon the upper surface of the cubicalpiece the upwardly projecting lugs of the paper; plates adapted to beplaced against the sides'of the piece of material before said lugs arebent down; head folders adapted to cooperate with said plates fortieshaping the piece; said head folders being adapted to be moved fromabove to below and to be approached one another during the last part oftheir path parallelly, the distance between them being at first largerthan the breadth of the piece and finally equal to it, as shown anddescribed.

9. In a machine for inwrapping pieces of fatty materials, thecombination, with a p1urality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inn-rapping paper blank in place; afeed device for the pieces to be inwrap'ped; means for bending the pieceof paper against and over the sides of the piece of material; platesadapted to be put against the front and rear end surfaces of said pieceof material in the feed direction before the lateral paper lugsextending from the front and rear sides of the piece in the feeddirection are folded and means for finishing the inwrapping operationas, shown and described. i I

10. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; means for bending the pieceof paper against and over the sids of the piece of material; platesadapted to be put against the front and rear end surfaces of said pieceof material in the feed direction before the lateral paper lugsextending from the front and rear sides of the piece in the feeddirection are folded, fined plates adapted to lie agalnst the other sidesurfaces of the said piece, and means for finishing the inwrappingoperation as shown and described. I

11. In a machine for inwrapping pieces-of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; means for bending the pieceof paper against and over the s'des of the piece of materiah'platesadapte to be put against the front and rear frontal surface of saidpiece, in the feed direction,

before the lateral paper lugs are bent; levers holding said plates;lateral projections forming parts of said levers, and being adapted tobe placed from above upon the front and rear cube edge while said platesare in their lower position; and means for finishing the inwrappingoperation as shown and described.

12. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; folders for bending thepaper piece into U-shape, laying the projecting paper parts upon theupper surface of the piece to be inwrapped, and folders for turninginward the corners of the laterally projecting parts; said latterfolders being arranged not only-to be rotated but also to be laterallydisplaced, and adapted to re-shapc therespective sides of the piece ofmaterial and to press the remaining under lugs against a support; andmeans for finishing the inwrapping operation as shown and described.

13. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and with means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; folders for bending thepaper piece into U-shape, laying the projecting paper parts upon theupper surface of the piece to be inwrapped, and folders for turninginward the other projecting parts of the blank; upwardly extendingfingers attached to the feed device and being adapted to preliminarilybend the remaining under lugs of the blank at the rear and front ends ofthe piece; said fingers being moved against the said paper parts frombelow; and means for bending also these remaining paper lugs against therespective sides of the piece of material, substantially as described.

H. In a machine for inwrapping pieces of fatty materials, thecombination, with a plurality of working places and With means forconveying each piece to and away from each of said places in propersuccession, of means for placing an inwrapping paper blank in place; afeed device for the pieces to be inwrapped; means for turning the paperblank into U-shape by bending upward those parts that lie transverselyto the direction of feed, and pressing these parts against therespective sides of said piece of material; means for bending over uponthe upper surface of the cubical piece the upwardly projecting lugs ofthe paper; means for folding inward the corner parts of the laterallyprojecting paper lugs; and means for bending also the remaining paperlugs against the respective sides of the piece of material; the meansfor folding the paper parts lying transversely to the direction of feedand those upper projecting parts of the blank lying parallel with saiddirection in front of and behind the piece of material being adapted tobe adjusted in Width corresponding to the respective dimension of thesaid piece, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

OTTO HESSER.

Witnesses:

FRIDA KLARBA, ERNEST ENTENMANN.

